The scene outside the JCC in Nashville, Tenn., following a recent spate of bomb threats on Jewish centers across the US. Photo: YouTube screenshot.

New York City’s head of police intelligence said Thursday that investigators believe one man using a voice changer and phone spoofing device is behind a large number of the scores of threats made against U.S. Jewish institutions this year.

John Miller appeared on the show “CBS This Morning,” describing the attacks as coordinated. The spoofing device makes it appear the call is not coming from the number the man is using, and makes it appear it’s coming from within the institution, he said.

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